The quantum cosmology debate
Alexander Vilenkin (Tufts University)

TL;DR
This paper reviews various proposals for the wave function of the universe, including tunneling, Hartle-Hawking, and Linde, and discusses recent developments in quantum creation of open universes.
Contribution
It provides a comparative analysis of different quantum cosmology models and highlights recent advances in understanding open universe creation.
Findings
Comparison of tunneling, Hartle-Hawking, and Linde proposals
Discussion on quantum creation of open universes
Insights into wave function of the universe
Abstract
I review the tunneling, Hartle-Hawking and Linde proposals for the wave function of the universe and comment on the recent work on quantum creation of open universes.
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